Welcome to the Illini Grotto Homepage! Illini Grotto was founded in 2023 in Mahomet, Illinois as a place for masons to enjoy good fellowship. What does goodfellowship mean to Illini? Tailgating Illini games, pool, role playing games, shrimpboils, restaurants, good beer and fellowship. If you are a mason in central Illinois and want to socialize with like minded brethren, seek out Illini. If you are a UIUC alum and a mason from out of state, join with like minded masonic alums!